Conversion of Performance Mesh Animation into Cage-based Animation

Abstract : Markerless highly-detailed performance capture is an emerging technology in vision-based graphics and 3D video. For instance, a framework for generating mesh animations from multi-view silhouettes is presented in [Vlasic et al. 2008]. Achieving inverse animation by approximating dynamic mesh using rigid skinning has inspired researchers to convert video-based reconstructed mesh sequence into rigid kinematic parameters as seen in [de Aguiar et al. 2008]. In contrast with previous techniques using skeleton- based animation paradigms, we describe an efficient linear estimation framework to convert non-rigid performance animation into cage-based animation. Our approach retrieves animation parameters through a single-pass minimization process without the need of an underlying rigid kinematic structure.